That doesn't mean everyone who supported him is racist and sexist, just that they have other concerns. As hard as it might be to understand there are people who think there are most important issues than the fact Trump is racist and sexist, even if they're still aware and disgusted by that fact. This election has been one of the most divisive ever and the rhetoric of "all Trump supports are racist and sexist" has only made that worse.
I hate this view. I think you're just trying to be balanced, but really you are legitimising views that ARE racist and sexist by saying things like this.
The point is that these words are overused, and are used to label people and shut down conversation.
If confronted by a true racist or sexist, the decent thing would be to engage in honest conversation. But people don't seem very interested in understanding other points of view.
Human beings are basically good. We are trying to go about our lives and do the best we can. The vast majority of us are neither sexist nor racist.